<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>DOM事件</title>
		<script src="js/main.js"></script>
		<style type="text/css">
			*{
				margin: 0px;
				padding: 0px;
			}
			.box{
				width: 500px;
				height: 500px;
				background: pink;
				margin: auto;
				margin-top: 50px;
			}
		</style>
	</head>
	<body>
		<div class="box">
			
		</div>
	</body>
</html>
